@charset "utf-8";
body,a,h1,h2,h3,h4,h5,h6,p,div,em,ul,li {
    font-family: PingFang SC, Verdana, Helvetica Neue, Microsoft Yahei, Hiragino Sans GB, Microsoft Sans Serif, WenQuanYi Micro Hei, sans-serif;
}

html {
    height: 100%;
}

/*去除ul中li左边的圆点*/
ul{
    list-style: none;
	  padding: 0;
    margin: 0;
}
body {
    padding: 0;
    margin: 0;
    width: 100%;
    background-color: black;
    overflow: hidden;
}
.container{
  background-color: black;
  width: 350px;
  padding:20px;
}
.screen-box{
  text-align: right;
  color:white;
}
.input-box{
  font-size:30px;
  height:40px;
  line-height: 40px;
  overflow: hidden;
}
.output-box{
  font-size:48px;
  height:56px;
  line-height: 56px;
  overflow: hidden;
}
/* keyboard style */
.line{
  display: flex;
  justify-content: space-between;
  text-align: center;
  margin-bottom:10px;
}
.line > div{
  width: 80px;
  height: 80px;
  line-height: 80px;
  text-align: center;
  color: white;
  border-radius: 80px;
  font-size: 25px;
  cursor: pointer;
}
[data-key="0"]{
  width: 168px !important;
}
.grey-white{
  background-color: #a5a5a5;
  color:black;
}
.grey-white:hover{
  background-color: #cccaca;
}
.orange{
  background-color: #ff9f0c;
  color:white;
}
.orange:hover{
  background-color: #ffbb54;
}
.grey-black{
  background-color: #333333;
  color:white;
}
.grey-black:hover{
  background-color: #747373;
}